capi-sig February 2009

capi-sig@python.org

8 participants
5 discussions

ANNOUNCE: PyBindGen 0.8
by Gustavo Carneiro 10 Mar '22

10 Mar '22

The other day I released PyBindGen 0.8. Main news is that it features a new experimental header file scanner based on pygccxml (i.e., it's similar to py++ in scope, if not in maturity, but does not use boost.pythonunderneath). == What == PyBindGen is a Python module that is geared to generating C/C++ code that binds a C/C++ library for Python. It does so without extensive use of either C++ templates or C pre-processor macros. It has modular handling of C/C++ types, and can be easily extended with Python plugins. The generated code is almost as clean as what a human programmer would write, and does not depend on any library or header files besides Python itself. == Where == https://launchpad.net/pybindgen/ == NEWS == - Support C++ instance attributes through getter/setter methods - Support functions as methods of C++ classes - Support the PyObject* type - Support unsigned int, C strings (char*) (from Mark Lee) - Add basic support for enum types - New experimental automatic module generator based on C/C++ header file scanner and annotations in comments, using pygccxml - Some bug fixes -- Gustavo J. A. M. Carneiro INESC Porto, Telecommunications and Multimedia Unit "The universe is always one step beyond logic." -- Frank Herbert

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Garbage output from warnings with embedded python
by Campbell Barton 29 May '09

29 May '09

Recently I wanted to deprecate some functions in our the C api, and found that warnings give weired output when running through through our C api. A simple test is to do this... print range(1.5) When I run this from python I get good output.. test.py:1: DeprecationWarning: integer argument expected, got float print range(1.5) But when running from our C api I get /home/ideasman42/blender-svn/blender/blender.bin:1: DeprecationWarning: integer argument expected, got float ELF�p40�"4()&44�4�44�4��F��F��F�K �K ğ<@G�K �K xxHH�H� P�td�2?��C ��C L,L,Q�td/lib/ld-linux.so.2GNU��8�1LQ �U�N�.yH {��d I thought this was todo with running a compiled string so I tried PyRun_String() on the text buffer instead of PyEval_EvalCode() but the same problem. Id be interested to know if anyones embedded python gives proper warnings. On Linux testing with python 2.6 here. -- - Campbell

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difficultiest to find installing blender and other support program
by Ahmad eko 16 Feb '09

16 Feb '09

Dear Support Python. I have around to find best rendering and was find blender as well as other rendering product, that galery of blender it so realistict and excited to install. I have install blender new 2.48a, and I install to python 2.5.2 (I dont know if I install newest is python 3.1 it will work or not.) I have the problem to complite python documentation server at http://localhost:7464/ install like this....which I must put from many list this? and then what I must fill it python command line??? "help", "copyright" or "license" for more information>>> and then I find plone new releases 3. 2. 1 after install that plone not shown on all program. it mean all this install just complite for blender right? Please I am really new and excited to learn and study much about rendering by blender. Also I have blog to collect my rendering job, would like to get from blender gallery and show on my blog. would like you don't mind and having information the best rendering of blender gallery artist community. Thank you for your guide and having best solution of blender rendering. Best Regards Ahmad Eko _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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Correct use of PyTuple_Pack?
by Philip Semanchuk 12 Feb '09

12 Feb '09

Hi all, I'm trying to make sure I'm using PyTuple_Pack() correctly. This code leaks references, yes? return PyTuple_Pack(2, PyString_FromString("some string"), PyInt_FromLong(42)); And this is the correct way to do it, yes? py_msg = PyString_FromString("some string"); py_type = PyInt_FromLong(42); py_return_tuple = PyTuple_Pack(2, py_msg, py_type); Py_DECREF(py_msg); Py_DECREF(py_type); return py_return_tuple; Thanks for the confirmation Philip

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Python segfaulting on exit
by Aaron Staley 06 Feb '09

06 Feb '09

Recently (I suspect after I upgraded to Ubuntu Intrepid), python has been segfaulting whenever it exits AND my Cpp extension has been importing. The exact error (from valgrind is): ==11326== Process terminating with default action of signal 11 (SIGSEGV) ==11326== Access not within mapped region at address 0x40 ==11326== at 0x5BAF974: (within /lib/libselinux.so.1) ==11326== by 0x5BA8B8D: (within /lib/libselinux.so.1) ==11326== by 0x5BA11D7: (within /lib/libselinux.so.1) ==11326== by 0x5BB134F: (within /lib/libselinux.so.1) ==11326== by 0x400E152: (within /lib/ld-2.8.90.so) ==11326== by 0x40B6D68: exit (in /lib/tls/i686/cmov/libc-2.8.90.so) ==11326== by 0x80ED204: handle_system_exit (pythonrun.c:1620) ==11326== by 0x80ED3FC: PyErr_PrintEx (pythonrun.c:1064) ==11326== by 0x80ED661: PyErr_Print (pythonrun.c:978) ==11326== by 0x80EDC87: PyRun_InteractiveOneFlags (pythonrun.c:795) ==11326== by 0x80EDDB7: PyRun_InteractiveLoopFlags (pythonrun.c:723) ==11326== by 0x80EE515: PyRun_AnyFileExFlags (pythonrun.c:692) Has anyone seen this before? This is not a showstopper for me, but it is a bit annoying. Thanks, Aaron

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capi-sig February 2009